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ia16-elf-gcc: use special .msdos_mz_{hdr, reloc} section names

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recognized by my recent (post-20 Mar 2018) binutils-ia16 patches
This commit is contained in:
Tee-Kiah Chia 2018-04-21 00:13:05 +08:00
parent fe57c89061
commit fdbea16132
1 changed files with 13 additions and 7 deletions
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20
kernel/kernel.ld
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@ -4,7 +4,7 @@
OUTPUT_FORMAT(binary) OUTPUT_FORMAT(binary)
DOS_PSP = 0x60; DOS_PSP = 0x60;
MEMOFS = DOS_PSP * 16 - SIZEOF(.hdr); MEMOFS = DOS_PSP * 16 - SIZEOF(.msdos_mz_hdr);
/* these GROUPs play the same role as GROUPS (segments) in OMF */ /* these GROUPs play the same role as GROUPS (segments) in OMF */
PGROUP = (MEMOFS + LOADADDR(.ptext)) / 16; PGROUP = (MEMOFS + LOADADDR(.ptext)) / 16;
@ -22,7 +22,7 @@ SECTIONS
/* Fabricate a .exe header here. Although libbfd does have an /* Fabricate a .exe header here. Although libbfd does have an
"i386msdos" back-end which produces an "MZ" exe header, it cannot do "i386msdos" back-end which produces an "MZ" exe header, it cannot do
certain things (yet). */ certain things (yet). */
.hdr : { .msdos_mz_hdr : {
/* Signature. */ /* Signature. */
SHORT (0x5a4d) SHORT (0x5a4d)
/* Bytes in last 512-byte page. */ /* Bytes in last 512-byte page. */
@ -30,9 +30,9 @@ SECTIONS
/* Total number of 512-byte pages. */ /* Total number of 512-byte pages. */
SHORT (ALIGN(LOADADDR (.ibss), 512) / 512) SHORT (ALIGN(LOADADDR (.ibss), 512) / 512)
/* Relocation entries. */ /* Relocation entries. */
SHORT (0) SHORT ((__msdos_mz_rel_end - __msdos_mz_rel_start) / 4)
/* Header size in paragraphs. */ /* Header size in paragraphs. */
SHORT (SIZEOF(.hdr) / 16) SHORT (SIZEOF(.msdos_mz_hdr) / 16)
/* Minimum extra paragraphs. */ /* Minimum extra paragraphs. */
SHORT (ALIGN(SIZEOF (.ibss) + SIZEOF(.istack), 16) / 16) SHORT (ALIGN(SIZEOF (.ibss) + SIZEOF(.istack), 16) / 16)
/* Maximum extra paragraphs. */ /* Maximum extra paragraphs. */
@ -45,12 +45,18 @@ SECTIONS
. = 0x18; . = 0x18;
/* Relocation table offset. */ /* Relocation table offset. */
SHORT (. + 4) SHORT (. + 4)
/* Overlay number + padding */ /* Overlay number */
. = ALIGN (32); SHORT (0)
/* Relocations */
HIDDEN (__msdos_mz_rel_start = .);
*(.msdos_mz_reloc .msdos_mz_reloc.*)
HIDDEN (__msdos_mz_rel_end = .);
/* Padding */
. = ALIGN (16);
} }
/* Target PSP section. */ /* Target PSP section. */
.ptext 0 : AT (SIZEOF(.hdr)) { .ptext 0 : AT (SIZEOF(.msdos_mz_hdr)) {
*(PSP) *(PSP)
} }